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2 years ago

10

Which vector is the sum of vectors à and b?

1 answer:

Wittaler [7]2 years ago

7 0

The vectors addition permits locating the perfect result for the sum of the two vectors in option B). See attached and the vector is directed to the right and up.

Vector addition is the operation of adding or extra vectors together into a vector sum. The so-known as parallelogram regulation gives the rule for vector addition of or greater vectors. for two vectors and, the vector sum is received via placing them head to tail and drawing the vector from the loose tail to the unfastened head.

A vector is an amount or phenomenon that has impartial residences: importance and direction. The time period also denotes the mathematical or geometrical representation of the sort of quantity. Examples of vectors in nature are velocity, momentum, force, electromagnetic fields, and weight.

Vectors are used in technological know-how to describe something that has a direction and a magnitude. they're commonly drawn as pointed arrows, the length of which represents the vector's importance

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Which vector is the sum of vectors à and b?

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What are 5 examples of pseudoscience that can be found on the Internet?

mel-nik [20]

-- flat Earth
-- no moon landings
-- no gravity
-- chem trails
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3 years ago

A paintball is shot horizontally in the positive x direction at time t after the ball is shot it is 4 cm to the right and 4 cm b

Artist 52 [7]

<u>Answer:</u>

At time 2t the paint ball is at 8 cm to the right and 16 cm to the bottom

<u>Explanation:</u>

We have equation of motion , $s= ut+\frac{1}{2} at^2$ , s is the displacement, u is the initial velocity, a is the acceleration and t is the time.

Considering the horizontal motion of paint ball

Distance traveled during time t = 4 cm

Initial velocity = u m/s

Acceleration = 0 $m/s^2$

So $4 = u*t+\frac{1}{2} *0*t^2\\ \\ u = \frac{4}{t}$

Now at time 2t,

$S= u*2t+\frac{1}{2} *0*(2t)^2\\ \\=\frac{4}{t} *2t\\ \\ =8cm$

So horizontal distance traveled in time 2t = 8 cm to the right

Now considering the vertical motion of paint ball

Distance traveled during time t = 4 cm

Initial velocity = 0 m/s

Acceleration = -g $m/s^2$

$4=0*t-\frac{1}{2} *g*t^2\\ \\ t^2=\frac{-8}{g}$

At time 2t,

$S=0*2t-\frac{1}{2} *g*(2t)^2\\ \\ =-\frac{1}{2} *g*4*\frac{-8}{g}\\ \\ =16 cm$

So vertical distance traveled in time 2t = 16 cm to the bottom

6 0

3 years ago

Calculate accelerationof the following. calcutale the acceleration of josh rding his biycle in a straight line that speeds up fr

BartSMP [9]

Explanation:

Wooho Physics my favorite subject! And my 100th answer :)

We will use the formula

$\boxed{\tt{ Acceleration = \dfrac{v - u}{t}}}$

Where v is Final velocity
And u is Initial velocity.
t is time taken.

In this question :-

u is 4 m/s
v is 6 m/s
t is 5 seconds

Applying the formula:-

$\sf{ Acceleration = \dfrac{6 - 4}{5}}$

$\sf{ Acceleration = \dfrac{2}{5}}$

So, Acceleration is 0.4 m/s² is the answer.

Hope it helps :)

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3 years ago

When you look at green dots with a red filter what color did you see?

Dimas [21]

-- Looking at the dots casually, they look green because they absorb all other
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-- The filter looks red because it absorbs all other colors of light, and only
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-- When the green light from the dots hits the red filter, it's absorbed in the
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If you're looking through the filter at the dots, they look <em>black</em>.

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3 years ago

how much energy is transferred when 1 gm of boiling water at 100 degree celcius condenses to water at 100 degree celcius?

Mademuasel [1]

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4 years ago

Read 2 more answers